Trace transaction execution

POST

https://unichain.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns all traces of a given transaction

Body

application/json

jsonrpcstringrequired

methodstringrequired

paramsArray<string | object>required

Show child attributes

Any of

string

object

idintegerrequired

Response

200OK

Successful trace response

Trace transaction execution

curl -X POST 'https://unichain.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
      "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
      {
        "tracer": "callTracer"
      }
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://unichain.nownodes.io/");
const result = await provider.send("debug_traceTransaction", [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://unichain.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://unichain.nownodes.io/"))
response = w3.provider.make_request("debug_traceTransaction", [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://unichain.nownodes.io/"),
});

const result = await client.request({
  method: "debug_traceTransaction",
  params: [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
],
});

console.log(result);

const endpoint = "https://unichain.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "debug_traceTransaction", params: [
  "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
  {
    "tracer": "callTracer"
  }
], id: 1 });
console.log(result);

const response = await fetch('https://unichain.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "debug_traceTransaction",
      "params": [
        "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
        {
          "tracer": "callTracer"
        }
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

response = requests.post('https://unichain.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://unichain.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "debug_traceTransaction",
    "params": [
      "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
      {
        "tracer": "callTracer"
      }
    ],
    "id": 1
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "debug_traceTransaction",
  "params": [
    "0x9e63085271890a141297039b3b711913699f1ee4db1acb667ad7ce304772036b",
    {
      "tracer": "callTracer"
    }
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "gas": 146164,
    "failed": false,
    "returnValue": "0x",
    "structLogs": [
      {
        "pc": 0,
        "op": "PUSH1",
        "gas": 376776,
        "gasCost": 3,
        "depth": 1,
        "stack": [
          "0x80"
        ]
      }
    ]
  }
}

Documentation

How to migrate to NOWNodes

Trace transaction execution

Authorizations

Body

Response